Loading...
Please wait, while we are loading the content...
Similar Documents
Studies of the ultraviolet spectra of astronomical sources
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1986 |
| Description | An intensive program of observations of the Comet Halley during the week of the Vega 2 and Giotto encounters was carried out by the International Ultraviolet Explorer (IUE) satellite observatory. The IUE Fine Error Sensor, normally used for target acquisition and tracking, was used in a photometer mode to provide nealy continuous light curves over an 8 hour observing shift, a unique capability relative to ground-bases observers. The ultraviolet data can be used to derive an estimate of the total gas production rate even though the models generally used for this purpose assume a steady-state gas production which is clearly not the case for Halley. Additionally, the IUE data provide column abundances of carbon, oxygen, sulfur, OH, CO, CS, C2, and CO2 to compare with the in-situ measurements of these species by Vega 2 and Giotto. |
| File Size | 205237 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860023000 |
| Archival Resource Key | ark:/13960/t8hf2qk1p |
| Language | English |
| Publisher Date | 1986-07-01 |
| Access Restriction | Open |
| Subject Keyword | Astronautics (general) Gases Emission Spectra Brightness Ultraviolet Spectroscopy Iue Astronomical Spectroscopy Abundance Halley's Comet Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
